Sergio Perez kept his Singapore Grand Prix win despite committing a safety car infringement that resulted in a five-second penalty.

The Mexican was investigated for two occurrences of failing to keep within 10 car lengths of the safety car during the rain-soaked Grand Prix.

After the race ended, he was given a reprimand the first time around and the penalty for the second, as well as two penalty points on his licence.

However, as Perez finished the race 7.595 seconds ahead of the rest of the grid, the penalty was nonconsequential to the podium finish, with Ferrari pair Charles Leclerc and Carlos Sainz finishing second and third.

Meanwhile, his Red Bull team-mate Max Verstappen had a race to forget as he only came home at seventh and saw his lead in the world drivers' championship standings slashed to 104 points.

Despite the setback, the defending champion is still favourites to retain his crown and his next chance to seal it comes in Japan on October 9.

Victory at Suzuka will see the Dutchman crowned champion for the second time if Leclerc finishes lower than second.